The deployment of US Harriers could mean that their British equivalents, the RAF GR7 and even the naval FA2, could be called into similar action in the coming months. Both have been deployed in the recent exercises in Oman, and have been based aboard the carrier HMS Illustrious, currently leading the British task group of 11 vessels in the Arabian Sea for duties in Afghanistan. The company-of 238 Royal Marines from 40 Commando are now training aboard Illustrious and the assault ship HMS Fearless with units of the special forces, the SAS and Special Boat Squadron. They will link up soon with 150 Australian SAS currently based in Diego Garcia.